研究のタイプ: 医学/生物学の研究 (experimental study)

[携帯電話からの1900 MHz電磁界による夜間メラトニン分泌への影響] med./bio.

Effects of the 1900 MHz electromagnetic field emitted from cellular phone on nocturnal melatonin secretion.

掲載誌: J Physiol Anthropol Appl Human Sci 2003; 22 (1): 61-63

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研究目的(acc. to editor)

To study the effects of the 1900 MHz electromagentic field emitted from cellular phone on nocturnal melatonin secretion.

詳細情報

Salivary melatonin was collected at 19:00 h and 2:00 h; for 30 min every hour from 19:00 h and 1:00 h the subjects used a cellular telephone continuously.

影響評価項目

ばく露

ばく露 パラメータ
ばく露1: 1.9 GHz
ばく露時間: intermittent for 30 min/h for 6 h

ばく露1

主たる特性
周波数 1.9 GHz
タイプ
  • electromagnetic field
ばく露時間 intermittent for 30 min/h for 6 h
ばく露装置
ばく露の発生源/構造
  • セルラ-電話
Distance between exposed object and exposure source 0 cm
ばく露装置の詳細 Subjects stayed in a climatic chamber with the receiver directly attached to the left ear.
Additional information On one day the receiver emitted an EMF, while on sham day there was no emission. The subjects did not know the exposure condition.
パラメータ
測定量 種別 Method Mass 備考
電力密度 2.5 mW/cm² - - - -
SAR 0.68 W/kg average over mass - whole body 0.453-0.680 W/kg
磁束密度 0.6 µT unspecified - - -

ばく露を受けた生物:

方法 影響評価項目/測定パラメータ/方法

研究対象とした生物試料:
研究対象とした臓器系:
調査の時期:
  • ばく露中
  • ばく露後

研究の主なアウトカム(著者による)

The study showed significant reduction of salivary melatonin at 2:00 h.

研究の種別:

研究助成

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